package ltd.dujiabao.reserver.util;

/**
 * @author : DuJiabao
 * @Project : reserver
 * @Time : 2021/11/7 13:38
 * @Desc :
 */
public class StringUtils {
    public static boolean isNullOrEmpty(String str) {
        return str == null || str.isEmpty();
    }
}
